Vacuum cleaner



FIG. 1 is a top front perspective view of a vacuum cleaner showing my new design;

FIG. 2 is a right side plan view thereof;

FIG. 3 is a left side plan view thereof;

FIG. 4 is a front plan view thereof;

FIG. 5 is a back plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top perspective view of a second embodiment of the vacuum cleaner showing my new design;

FIG. 9 is a right side plan view thereof;

FIG. 10 is a left side plan view thereof;

FIG. 11 is a front plan view thereof;

FIG. 12 is a back plan view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The broken lines show portions of the vacuum cleaner that form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 